In a centrifuged sample of blood, the buffy coat layer contains:

What were the positions held by President Theodore Roosevelt and naturalist John Muir, who are shown on a camping trip in Yosemite in this 1903 photograph, regarding nature and natural resources?

What tissue is this?  

What did novelist Upton Sinclair mean when he stated that he “…aimed for the public’s heart, and by accident…hit it in the stomach,” when he was referring to his novel The Jungle?

What tissue is this?  

Name the bone marking marked in green   

What bone marking is this one, indicated by the tip of the pen?   

What trust controlled by J.P. Morgan did Theodore Roosevelt break up in 1904 for threatening public interests through consolidation?

What bone marking is this one, indicated by the tip of the pen?   

What is the name of the bone marking indicated by the tip of the arrow?